flood web map application for west virginia - amazon s3€¦ · flood web map application for west...
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Flood Web Map Application for West Virginia
Xiannian Chen, Kurt Donaldson,
Eric Hopkins (presenting), and Frank Lafone
West Virginia GIS Technical Center WVU Department of Geology & Geography
Morgantown, WV 26506
ESRI Mid-Atlantic User Group (MUG) Annual Conference 2011 Baltimore, Maryland
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Outline • Introduction, defining the goals & challenges • Available data and technical resources, features & functions • Disseminating flood map information • WV Flood Tool, v. 1 • Migration challenges • New features & functions • Development environment • WV Flood Tool, v. 2 • Web demo (?) • Conclusions • Acknowledgments • Questions
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Introduction, goals & challenges Outcome of discussions ca. 2006 (FEMA, DHSEM, WVGISTC): •Communicate flood risk to community stakeholders
•Make use of new, high quality statewide GIS data overlays -aerial orthoimagery: SAMB 2003, NAIP, DOQQ -local resolution streams (SAMB, 1:4,800) -roads (SAMB / Census, 1:4,800) -elevation (SAMB / USGS NED, 3-meter)
•Incorporate revised flood data from FEMA map modernization •countywide DFIRM database
•Users realize the power of GIS with less financial burden
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Data, resources, features & functions • New countywide DFIRM Data (GIS conversion of FIRM)
• Up-to-date aerial imagery
• SAMB (2-foot, leaf off)
• NAIP (frequently flown, leaf on)
• Bluestone Dam drainage area lidar/ortho (6-inch)
• Local/County (e.g. Cabell, Monongalia) (6-inch)
• Elevation contour lines (now 10-foot)
• Searchable addressed structures
• Advisory Flood Height (WSEL) in some counties (HEC-RAS)
(depth data added to new version)
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Flood map & information dissemination DFIRM databases WSEL
GIS data (non-flood) -imagery -roads -streams -elevation
GIS
ESRI ArcIMS / SDE / Oracle
Web Users
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Migration challenges
• Support for ArcIMS sunsetting
• Need to find new platform
• Select functionality and data to bring forward
• Explore new tools and visualization techniques
- Flood depth query and visualization
- Risk MAP data layers (HAZUS)
- User environment tailored to end users
- Markup capability
- Share link to map extent
- Enhanced printing
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Flood map & information dissemination DFIRM databases Risk / HAZUS Depth
GIS data (non-flood) -imagery -roads -streams -elevation
GIS
ESRI ArcGIS Server / Flex API
Web Users
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ArcGIS Server Development Environment • Data served via ArcGIS Server version 10.0 • Published via REST services • Available for consumption in ESRI software
• Application developed using ESRI’s ArcGIS Server
Flex API version 2.2 Benefits: -Flex based upon the Flash platform -Large install base – nearly everyone has Flash installed -Automatically cross browser and cross platform -Quick development/update time
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ArcGIS Server Development Environment (continued)
• Cons (Flex API): -Requires Flash installed to work -Limited translation to mobile market
• Server - Running on new VM servers with 48GB of RAM, 45TB of
Storage
What’s the new Flood Tool look like?
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Conclusions
• Early success
- Meet most needs & goals
- Positive feedback
• New tool also successful, though challenges remain
- Advanced users embrace new appearance & function
- Some users nostalgic about old version of tool
- Need for outreach & training
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Outreach/Training for 2011-12
(1) User Manual and Quick Start Guide
(2) Live training through classrooms and webinars
• Series of short training videos
• Press Release through WV DHSEM
• Outreach to potential flood tool users (real estate, banking,
county & local FPMs, etc.)
• Online flood tool survey
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DATA – Updates for 2011-12
(1) Updated DFIRM Data – 12 counties updated by 1 Nov 2011 •4 counties - Effective DFIRM (33 to 37) •4 counties – Preliminary/draft DFIRM (12) • 4 counties- Advisory Flood Height (5 to 9)
(2) Other Flood Data (May 2012) •Mitigated Properties (WV DHSEM) (3) Base Map & Reference Layers (June 2012) •Parcels for 2 counties •Statewide 2011 NAIP imagery • 4 counties- Advisory Flood Height (5 to 9)
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Vision for Improvements (1) Additional Flood Hazard Data • Bridges and other flood structures • Advisory Flood Heights for Approximate A Zones • Floodplain/Base Elevation Data for Detailed Study Areas • Mitigated areas
(2) 2-ft Contours and Higher-Resolution Elevation Grids
(logistical challenges!) (3) Demographic/Population Data (4) Flood Data Web Services (streaming download of data) (5) Mobile Application?
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Acknowledgments
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Questions?
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WV Flood Hazard Determination Tool Development Team:
Kurt Donaldson: Project Manager [email protected] Eric Hopkins: Data coordination & development [email protected] Evan Fedorko: Data coordination & development (water surface elevation,
Risk MAP/HAZUS) evan.fedorko@@mail.wvu.edu Frank Lafone: Application design & development [email protected] Xiannian Chen: Application development & implementation [email protected] Kevin Kuhn: Address locator data & services development [email protected]
West Virginia GIS Technical Center
WVU Department of Geology & Geography Morgantown, WV 26506
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(33) (12)
(7) (3) (5)
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(37) (12)
(4) (2)
(9) (4)